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    • 91. 发明授权
    • Method of forming resist pattern and negative tone-development resist composition
    • 形成抗蚀剂图案和负色调显影抗蚀剂组合物的方法
    • US08394578B2
    • 2013-03-12
    • US13028594
    • 2011-02-16
    • Tomoyuki HiranoTakahiro DazaiDaiju Shiono
    • Tomoyuki HiranoTakahiro DazaiDaiju Shiono
    • G03F7/26
    • C08F20/10G03F7/0397G03F7/2041G03F7/325
    • A method of forming a resist pattern, including: forming a resist film on a substrate using a resist composition containing a base component (A) which exhibits decreased solubility in an organic solvent under action of an acid and an acid-generator component (B) which generates an acid upon exposure, conducting exposure of the resist film, and patterning the resist film by a negative tone development using a developing solution containing an organic solvent, wherein the base component (A) includes a resin component (A1) containing a structural unit (a1) derived from an acrylate ester containing an acid decomposable group which exhibits increased hydrophilicity by the action of an acid and a structural unit (a0) derived from an acrylate ester containing an —SO2— containing cyclic group.
    • 一种形成抗蚀剂图案的方法,包括:使用含有在酸和酸发生剂组分(B)的作用下在有机溶剂中表现出降低的溶解度的碱成分(A)的抗蚀剂组合物在基材上形成抗蚀剂膜, 其在曝光时产生酸,曝光抗蚀剂膜,并使用含有有机溶剂的显影液通过负色调显影对抗蚀剂膜进行图案化,其中所述基础组分(A)包括含有结构 来自含有酸分解性基团的丙烯酸酯的丙烯酸酯单元(a1),其通过酸的作用显示增加的亲水性和由含有-SO 2 - 的环状基团的丙烯酸酯衍生的结构单元(a0)。